Radiator cap



Nqv. 24, 1931. K E, STANT f 1,833,694

RADIATOR GAP Filed May 1. i929 '5 sheets-sheet A 1 FIG. 5

/ INVENTQR KHE f. 5TH/Vf ATTO RNEYQ NOV. 24, 1931. K E STANT 1,833,694

yRADIATOR CAP Filed May 1, 1929 l 5 Sheets-Sheet 2 FIGJI- l Z 2 /4 f /fY .22 2l I F1617 FAG-8 INVENTOR /mf f. :7n/v7- ATTORNEY? NQV. 24, 1931.K E STANT 1,833,694

RADIATOR CAP .Filed May l. 1929 3 Sheets-Sheet 3/lllllllllllll/lllIl/Ill/ l man INVENTOR KYLE E. .sm/v7.

ATTORNEYS Patented Noir. 24, 1931 r1,833,694

UNITED' STATES PATENT OFFICE:i

mn n um, or conmmsvnm mmm.

muren cn applic-mn mamy 1, ma. sel-m nu. 359,514.

This invention relates to radiator caps and Fig.` 7 is a perspective ofthe sealing particularly to a combination of a cap and washer.; insidelock on the filler spout. Fig. 8 is a perspective of the locking cen- Itis an object of my invention to provide tering cap; n 5 a cap which maybe yieldingly locked to the Fig. 9 rs a top plan View of the ller s outA' interior of the ller spout and simultaneously shovving equallyspaced, unequal Width s ots; seal the opening in thespout to prevent theF 1g. 10 is a section on the line 10--10 theleescape of liquids orgases. f; find f It is a further'object to provide such a com, F 1g. 1 11s a view similar to Fig. 9, showing 10 bination of parts that they willbe self-ad- @qual Wldth Slots unequally spaced. f justing l10n-rattling,non-leaking and of Referring t0 the drawings in detail, 1 iS a suchcheap construction that they will -be filler spoutwhich has a turn overlip 2 formadapted to quantity production at; low cost. lng a relatlvelybroad marginal bearing edge It is a further object to provide such alock- 3 0r recelvlng the sealing Washer. This lip ing member that willprevent lateral shifting has a pllllaht 0f slots; these slots may be 60of the cap 0n the filler spout, and thereby inequally space but 'one ofthem, such as 'slot sure alignment of sealing Washer in sealing 4, maylarger than the other slots 5 and position on the margin 0f the fillerspout 6, as 1n Fig. 9; or, the -slots may be unequally where a tightleak-proof joint may be made., spaced but of equal w1dth, such as slots7, 8 2 It is a vfurther object to provide means of and 9 111 Flg- 11- 35nlignngfthe radiator'cap on the ller spout Ad 8.681113 theSe SlOtS areCams 9d and B ,SSO-

so as to insure the exact position of the cap @late W}th the Cams areStops t0 hmt both for ease and accuracy for mounting and the rotatlv@movmeltf the Call locking and for .proper location of any'orna- The CQ'PItself 1S designated 1 1 and 1S pro'- ment carried 011th@ cap, y videdwlthlan outslde depending marglnal 70 .It is a furtherA object, to'provide a Sealing iiange 12, vpreferably of decorative character gaskethaving a leak-proof cnnection at adapted Vt0 COIlC/al the Upper end 0fthe substantially the center of the cap and ex- SPQut M ld to enlose thelocking and Seahng ltending laterally and radially to cover andmechamsm- Ths ca ,1s pm vlded Wlth a ,cen' seal the entirev spoutopening. trani' 10Cute@ dePm ng columna prfel`fib1y ,75 Referring to thedrawings hollow, and 1s deslgnated 13. It 1s provlded v Fig. lis avertical section through a filler )mth a- Square Shoulder. portlon 14.located ,spout and cap; y 111g a glilootlre lvflnch recklves thelocking cup Fig.' 2. is` a perspective of the spring enfin 61st :f-mg upldas alfluril of 19t' 80 mounted' plate of cap sealing and locking i y emg S ou ers 'W 19 am 1n' Y serted 1n theslots heretofore mentloned andmechanism; then en v gage the cams 9a and sto s 10. The cllfg' 3 1s aPerspetwepf the cap lockmg lower end of column 13 is turiied over atFig. 4 is a vertical section througha moditlattoiliutles :3,521 Ihrglv85 fied form of the cap lockingmechanism; ment .of ca 11. 55, F ig. 5 isa perspective of the springmount Mounte Awithin .the 'groove in whichthe thereof; lockin cu 15 is mounted is a sealing wash- 45 Figt 6 1s aperspectlve of the friction er, pre era ly of fiber, designated as 18whichwasher; rests atits margin upon the rim 3 of the,

loosely mounted upon the-column 13 so that it may remain stationary withthe Washer when that is desired. .A helical spring ef bee-hive formdesignated rests upon thls 1 plate at one end and abuts against theinside for retaining said washer in engagement with 7 said lip and areenforcing plate yieldingly moved by said yielding means against saiwasher.

2. In combination a filler spout with' an inwardly turned loc g lip, aradiator cap having Aa dependingcentral boss, a locking cup mountedthereon within said filler spout of the'cap 11 around the column 13 atitsJ lip in locked engagement therewith, means other end. It is possibleto permit vertical and rotative movement of the cap with respect to thespring actuated plate by reason of its mounting. 'The plate is dshed asat,Vy 19a, so that only its margin will engage with the sealing washer.

'In operatlon the locking lugs 16 are inserted through the .slots in thelip 2 'of the 2 filler spout and the cap is rotated until the. lugs 16engage the stops 10. This compressesthe spring, seals the washer to thefiller spout, such washer being positioned laterallyl and the whole capbeing psitioned laterally by the abutment of the vertical walls 21 ofthe locking cup 15 .engagingr with the vertical inside walls of lip 2 ofthe filler spoutl.

Turning to the modiications shown in Figs. 4, 5, 6, 7 and 8 where likenumerals 3 represent like parts, we note that the method of mounting thecupV 15 is by means of a screw 22 as distinguished from the rivetturn-over lip 17 on the other form. The gasket or sealing washer 18 hasa friction washer 23 engaging it at its inner margin, to seal it withrespect to thedepending sleeve 13 while its periphery is engaged by thespring washer which consists of a ring 24 and a plurality of struck-upspring fingers 25 which engage 4 within the shoulder margins of adepending ring 26 carried on the inner side of the cap 11. The smallfriction washer 23 sealsthe gasket around the depending boss or sleeve13 while permitting relative rotation so that* the cap and itsilockingmember may move while the sealing washer is stationary. While I preferthe sealing washer or gasket to be rotatably mounted yet it canbe'nonrotatably mounted. a v

5 It will be understood that I desire to comprehend within my inventionand within the scope of my claims such modifications as may be` fairlycomprehendedi within such claims and invention due to necessarymodificationsk to adapt my invention Ito varying conditions j of use andto varying purposes. Having thus fully described my invention, what Iclaim is new and desire'to secure by` 4 Letters Patent, is:

1.v In combination, a filler spout with an inwardly turned locking lip,a radiator cap having a depending central boss, -a locking cup mountedthereon within said filler spout lip in 'locked enga ement therewith,means tol l 65 prevent said cup om rotating on said boss,

'to prevent said cup from rotating on said boss, a .sealing washercarried on said boss engaging the margin on said lip, yielding means forretaining saidiwasher inv engagement with said lip, a reenforcing plateyieldingly moved by said yielding means against said washer engaging theperiphery thereof said plate being freely mounted on said boss. 3. In'.combination, a filler spout havin an inwardlyturned lip with aplurality o locking cams and positioning slots, stops on said lipadjacent said cams, a cap, aloclnng cup carried thereby having lockingshoulders projecting laterally therefrom through said slots riding onsaid cams and enga-ging said stops, a washer carried by said cap,lasprmg l pressed plate carried by said cap and yielding means for,forcing said plate and washer into engagement with the lip of saidspout.

4. In combination a filler spout having an inwardly-turned lip with aplurality of. lockin'g cams and entrance slots, a cap, a locking membercarried thereby having locking shoufders projecting laterally therefromthrough said slots and riding on said cams, a washer carried by. saidcap, a springpressed plate carried by said cap, and yielding means forforcing said plate and washer into engagement with the lip of saidspout, said plate being'arranged for movement par- 4allel with the axisof thecap.

5. In combination, a filler spout having locking cams, a cap having acentrally ar-l ranged depending boss, a locking cup with laterallyprojecting locking lugs mounted on said boss, a washer mounted on saidboSS., a spring plate rotatably mounted -on said boss and a springinterposed between said cap' and said plate around the boss foryieldingly -moving said washer' into engagement wlth the filler spoutlip.

6. In combination, a iller spout having an inwardly turned lip with aplurality of spaced cams and stops thereon, entrance slots lao adjacentthereto, a cap having a depending' boss, a locking cup the side of whichengages the inner portion of said lip, locking lugs projecting laterallytherefrom for engaging said cams, a washer carried by said boss engagingthe upper margin of said lip, means 'to seal said washer'to said bossand yieldin means to seal said cap and said washer and to maintain itin'engagement with said filler spout.

7. In combination, a ller spout having an inwardly turned lip with aplurality of spaced cams and stops thereon, entrance slots adjacentthereto, a cap having a depending boss, a rigid locking member mountedon said boss, means preventing'rotation of the lock-

